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| www..com Silicore MOTOR SPEED CONTROL CIRCUIT GENERAL DESCRIPTION The D6650 is a monolithic integrated circuit designed for the tape recorder. D6650 FEATURES Wide operating supply voltage : Vcc=1.8V~7 V Few external components Easy Speed control mo de Outline Drawing BLOCK DIAGRAM COMP. INPUT 4 VREF- VREF+ 1 2 Vcc 3 VREFVREF+ PINNING 1K + _ 10K 7 MOTOR 8 PHASE Reference Voltage 1 2 D6650 3 4 5 6 7 8 GND GND MOTOR PHASE Start Circuit Vcc COMP. INPUT 5 GND 6 GND SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 1/4 CHMC www..com Silicore MAXIMUM RATINGS Characteristics Supply Voltage Terminal Vo ltage Terminal 8 Vo ltage Supply Current Terminal 7 Current Power Diss ipation Operating Te mp erature Range Storage Temp erature Range Symbol Vcc Vn(n=1,2,3,4) V8 Icc I7 PD Topr Tstg D6650 Value 7.5 -0.5~7.5 -0.5~1 1000 1 0 00 750 -20~70 -40~150 Unit V V V mA mA mW C C ELECTRICAL CHARACTERISTICS (Unless otherwise specified Vcc=6V,Ta mb=25C,f=1kHz) Characteristic Quiescent Circuit Current Reference Vo ltage Start Voltage Saturation Voltage Reference Vo ltage Characteristics Output Voltage Characteristics Reference Voltage Current Characteristics Reference Vo ltage Te mperature Characteristics Symbol Icc VREF Vcc(s) Vsat Test Condition Vcc=3V Vcc=3V, R2-1 >1 0k 30mA current flow to Ra Vcc=1.8V, Ra=4.7 Vcc=1.8V~7.0V Vcc=1.8V~7 .0V I7=1 mA~20mA Ta=-20~60C, Vcc=3.0V Test Min. Typ. Max. Circuit 1 4 2 2 1 3 4 -1.25 -1.2 -0.2 2 3 Unit mA V V V %/V %/V 1.20 1.28 1.35 1.0 0.2 0.1 0.1 0.01 1.2 0.5 1.25 1.2 0.2 %/mA 4 0.01 %/C SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 2/4 CHMC www..com Silicore TEST CIRCUIT V D6650 8 0.1uF 7 6 5 Ra 0.1uF 8 4.7 7 6 5 D6650 1 10K 1.0uF A Vcc 2 3 4 D6650 1 9.1K 2 0.47 1K 1.0uF 3 4 Vcc Fig.1 Fig.2 8 0.1uF Va Ra 4.7 7 6 5 0.1uF 8 7 6 5 D6650 1 9.1K 2 10 1K 1.0uF 3 4 A D6650 1 9.1K 2 10 1K 1.0uF 3 4 Vcc V Vcc Fig.3 Fig.4 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 3/4 CHMC www..com Silicore Application Circuit D6650 1000pF 8 0.1uF 7 Ro=4 6 5 M D6650 1 9.1K 2 3 4 1K Vcc 510 0.4 3 1.0uF SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 4/4 CHMC |
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